Harness-evening mechanism for looms.



No. 629,220. Patented luly I8, |899; W. W. UHLINGER.

HARNESS EVENING NECHANISM F03 LOMS;

(Application led Hay 4, 1897.;

3 Sheets-Sheet t.

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No. 629,220. l Patented muy la, |399.Y

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HARNESS EVENING MECHNISM FUR LOMS.

{Applicaton filed May 4, 18973 Y 3 Sheets-Sheet 2.

(N0 Model.)

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HARNESS EVENING MECHANISM FDR LODMS.

(Application med May 4, 1897,) Hic Model.) 3 Sheets-Sheet 3.

L; ttozumj 'l UNL-TED STATES PATENT OFFICE.

WILLIAM W.' UHLNGER, or NEW vonk, NQY.

HARNESS-EVENINGMECHANISM FOR Looms.

sPncIFrcArIoN formingparr of 'Letters Patent No. 629,220, daten July 1e,1899.

Application led May 4, 1397. Serial No. 635,063. (No model.) Y

To @ZZ zzz/72,0101, t may concern: 1

Be it known that 1, WILLIAM W. UHLIN- GER, of New York, in the countyofNew York and State of New York, have invented certain new and usefulImprovements in Harness- Evening Mechanismforl Looms; and l do herebydeclare the following to be afull, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to looms, and partie* ularly that class known asdouble-lift openshed dobbies, and it consists, essentially, ofV amachine of the character specified that is operated by a one-cardcylinder, including devices for actuating the harness-shafts.

The invention consists in the detailsof con-l struction and thearrangement of the several parts, which will be more fully hereinafterdeiand also asingle-eard cylinder,y which oper aies the pattern-cardson'a double-lift open- Vshed dobby, and also mechanism for leveling orletting down 1the hooks, so as to level the harness-shafts.

In the accompanying drawings, Figure 1 is an elevation showing theimproved attachments and so much of the loom as to illusf trate theapplication of the invention. Fig. 2 is a detail view showing themechanism, in-

cluding the hooks and parts connected there' to. Fig. 3 is a detail viewof the leveling mechanism for the harness-shafts. Y

Referring to the drawings, wherein similar numerals of referenceareemployed to indi-` cate corresponding parts in the several views, thenumerals 1 1 designatevthe side pieces of the frame, which form thebearings or sup ports for the mechanism hereinafter de scribed. Thesebearings and supports may be of the most approved pattern, and journaledin those carried .by the said side pieces and extending between thelatter is a rockshaft 2, having two arms 3 extending beyond oppositesides of the shaft and forming a double lever. operating-lever 4, havinga slot 5 in its outer Attached to the said shaft 2 is an end forconnection thereto of an operating device or mechanism. The ends ofthearms 3 are connected up to plunger-rods '6 and 7 .by means of links 8,the said plunger-rods having laterally-projecting pins, to which thelinks are pivoted. To the ends of the plunger-rods 6 and knives 9 areattached, adapted' to be engaged by hooks 10, which are pivotedjto theends of the jack-levers 11, which are centrally pivoted toharness-levers`12. The upper'series of hooks 10 rest upon the bent ends13 of -rods 14, extending downwardly through the'lower series of hooks,as

,clearly shown in Fig. 2, the .lower ends of said rods 14 being engagedby indicator-levers 16, pivotally mounted-on a cross bar or vshaft 17and operated upon by the needles.

The rods are stepped in recesses therefor'in the indicator-levers, asshown, and said levers yare extended to engage the lower hooks.

A bell-crank lever 18 is movably secu'red to one of the side pieces 1 ofthe frame and is connected by a rod 19 to one arm of a second bell-cranklever 20, the other arm of the bellvcrank lever 18 having a dependingrod21 pivoted thereto, which is connected at its jlower end to acard-cylinder 22, the pattern4 needles 23 being mounted in a guide 23.Ad-

vare movably connected to a transverse shaft 27 at the top of thesupporting-frame, and each is provided with a depending arm 28,connected to the harness-frame by a cord or yiiexible connection 29,that passes over a sheave-wheel 30, the connection being made by a loop31, that engages one of a series of notches or recesses 32 at the innerside of the IOO said arm. v- In connection with the jack-levers 1l, thatare pivoted to the harness-levers 12, are cross-bars and 311, ext-endingbetween the side pieces of the frame and forming stops for the saidjack-levers. The device for releasing the hooks consists of a shaft 35,located and suitably supported at one side of the machine. This shaft isprovided with a spirally-arranged projection or n 37. The saidprojection 37 engages the hooks and moves them out of contact with theknives.

The shaft 35 is operated by a lever 36, having a counterbalanGing-weight38. It should be understood that when the hooks are disengaged they willbe returned to their normal positions through the intervention ot' thelevers 12 and weighted flexible connections which pass over the sheavewheel. The weight of harness and Weights on the bottom of the hooksserve to return the hooks to their norlnal positions after they havebeen forced off from the knives by the spiral projection 37. The lever36, which operates the shaft 35 to disengage the hooks, is limited inits movement in both directions b va suitable lug or projection 30, asshown in Fig. l, which is adapted to engage with shoulders or stops 40on an adjoining bracket at the end of upper plunger-rod 6.

In theoperation of the machine the Inovement of the lever 4t will causean opposite reciprocation of the upper and lower hooks through theintervention of the plunger-rods connected to the arms 3 by the links S,and thereby carry the knives that engage the hooks and push themforwardly,` the said lever II being operated by well-known mechanism, asclearly shown in patent granted to NV. P. Uhlinger, dated May 21, 1889,No. 403,565. The card-cylinder is elevated and lowered at every rotationof the crank-shaft and beat of the lay and is driven by an eccentric orcrank from the main shaft of the loom, which is connected to the end ofthe bell-crank lever 20, motion being imparted through the rod 19 to thebell-crank lever 1S and thence by the depending rod 2l to the saidcylinder. The vertical reciprocation of On the upward movement of thecard-cylinder the needle 23 will engage the indicator-lever 16, provideda blank space of the card is under the same. If an opening in the cardis presented, to the needle, the latter Will not be operated upon, butremain in the position shown in Fig. l. When the blank space comes underthe needle, the indicator-lever 16 is pressed upon in each instance andthe rod'l4 is let down, as also the endof the indicator-lever. Of coursewhen the said indicator-lever is operated or raised by the needle thehooks are relieved and drop by gravity, and the knife in its outwardcourse does not engage the hook, and consequently the harness-shaftwhich is operated remains in the lowered position. By the invertedarrangement of the hooks a great advantage is secured. In ordinarycard-dobbies the hooks are in reverse positions to those shown in thedrawings and must be held up when the cylinder operates, and the needlesmust lift the hooks off the knives. By pulling the hooks through themechanism set forth jack-levers are actuated, and if both hooks arepulled alternately the harness-shaft will stay up, and if after one pickthe hooks are engaged they will rise, and if after the next pick thehooks are not engaged the harness-shaft will stay down.

Having thus described the invention, what is claimed as new is- In aloom, the combination of a pair of plungers carrying knives, upper andlower hooks having the shouldered portions thereof uppermost, acard-cylinder and mechanism for synchronously operating the severalparts, an outer shaft located in the range of the plunger having aprojection thereon arranged in a spiral line adapted to engage the endsof the upper set of hooks and provided with a counterbalan@ing-weight,and an operatinglever attached to said shaft, substantially asdescribed.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

VILLIAM lV. UIILINGER.

lVitnesses:

EMIL IIAMPE, JOHN A. Mossnn.

